baber/WOPTO huggingface dataset:
Patent GB-1312480-A (GB)
Title: Means of generating mechanical power by expansion of a compressed gas
IPC: F02C7/08
Filed: 1970-06-15
Abstract: 1312480 Gas turbine plant SOC GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES (ALSTHOM) 15 June 1970 28983/70 Heading F1G The gas turbine plant shown in Fig. 1 comprises a compressor 1, combustion equipment 4 and a turbine 5 connected to drive the compressor through a shaft as indicated by the chain dot line. Water is injected into the air from the compressor by means of a device 2 and the air and water mixture is preheated in a heat exchanger 3 by exhaust gases from the turbine. In Fig. 2 the air and water mixture is again preheated in heat exchanger 8 and then passed directly into the turbine 9, the air and water mixture discharging from the turbine passing to combustion equipment 10 to which fuel is supplied, the combustion gases then passing to the heat exchanger 8 to preheat the air and water mixture.
Patent GB-843426-A (GB)
Title: Surface treatment of articles composed of an aluminium base alloy
IPC: C21D1/70
Filed: 1958-09-10
Abstract: A finished or semi-finished article composed of an Al-base alloy containing 0.1-15% Mg is coated with an organic ammonium fluoroborate which yields boron trifluoride when heated to a temperature between 400 DEG F. and 750 DEG F., and heated to a temperature between 400 DEG  and 750 DEG F. for a time sufficiently long to cause disappearance of the fluoroborate and the formation of a protectve film on the surface of the article.  The Al-base alloy may also contain one or more of Cu 0.1-12%, Si 0.25-14%, Zn 0.1-20% and Mn 0.1-3%, together with not more than 3% in all of one or more of Cr 0.05-0.5%, Ti 0.01-0.5%, Ni 0.25-2.5%, B 0.01-0.5%, Be 0.002-2%, Mo 0.1-0.5%, Zr 0.1-0.5%, Ta 0.1-0.5%, Nb 0.1-0.5% and Co 0.1-0.5%: specific examples are given of the alloy.  The fluoroborate may be di-n-butyl ammonium tetrafluoroborate, n-octadecyl N,N,N-trimethyl ammonium tetrafluoroborate or di-n-amyl ammonium tetrafluoroborate, and may be applied to the article in solution (aqueous or alcoholic, with wetting or other surface-active agents if desired), or in a molten state.  The article may subsequently be de-gassed by heating at a temperature above 750 DEG F. but below the temperature of incipient fusion.  Specification 494,274 and U.S.A. Specification 2,379,467 is referred to.
Patent GB-649755-A (GB)
Title: Fitting boards for feet
IPC: A43D1/02
Filed: 1948-11-08
Abstract: 649,755. Linear-dimension gauges. CHURCH & CO., Ltd., and PAGE, F. G. Nov. 8, 1948, No. 29009. [Class 106 (ii)] [Also in Groups VII and XX] An anthropometrical gauge for measuring the distance between the heel and first metatarsalphalangeal joint in conjunction with a source of X-rays, comprises a plate 1 of material permeable to X-rays provided with locating means for the heel 7, and inner side of the foot 6, and a scale 19, located beneath the plate in the region occupied by the ball of the foot, which is opaque to X-rays. The plate 1 is secured to a lower plate 2 carrying the opaque scale 19, by screws 20, the heel supporting portion 3 being raised by spacer blocks 5. The upper plate 1 may be provided with a scale 8 and measuring tapes 16, for making the usual measurements in known manner.
Patent GB-502532-A (GB)
Title: Improvements in low capacity air-dielectric condensers
IPC: H01G4/02
Filed: 1938-10-07
Abstract: 502,532. Condensers FABBRICA ITALIANA MAGNETI MARELLI. Oct. 7, 1938, No. 29139. Convention date, Oct. 8, 1937. [Class 37] A small-capacity condenser is made by utilizing the edges of a metallic layer on one side of an insulating support 1, facing one another across an air gap 3, formed as by cutting away a band of the layer, thus obtaining two parts 2<SP>1</SP>, 2<SP>11</SP> which form the electrodes.
Patent GB-816379-A (GB)
Title: Television system
IPC: H04N7/18
Filed: 1956-09-24
Abstract: 816,379. Television. GRIMSON COLOR Inc. Sept. 24, 1956 [Sept. 26, 1955; March 6, 1956], No. 29166/56. Drawings to Specification. Class 40 (3). In a television transmission system a field of view to be televised and which has a selected aspect ratio is optically compressed in a required direction so as to have a different aspect ratio (preferably unity) at the camera tube and at a receiver the original or a different, desired, aspect ratio is produced by variation of the amplitude of the scanning waveform appropriate to the required direction. This arrangement allows a " close-up " of a scene to be transmitted, the major interest of which extends in one of the two co-ordinate scanning directions and is of particular application in closed circuit industrial television systems for transmitting images of measuring instruments having index markings extending in either the vertical or horizontal directions in addition to conventional television applications. Details of arrangements for varying the amplitude of one of the scanning waveforms applied to the picture reproducing tube are given.
Patent GB-248471-A (GB)
Title: Improvements relating to wind motors
IPC: F03D3/00
Filed: 1924-12-05
Abstract: 248,471. Jefferies, T. A. Dec. 5, 1924. Current motors; regulating.-In wind motors wherein a wheel .A carriers a number of rotor vanes B utilizing the Magnus effect, a cylindrical cowl F is disposed as a rim to the wheel. The vanes B are rotated on radial axes by an electric motor M driving through worm gear and friction or bevel gear D. Regulation to compensate for varying wind conditions may be effected either mechanically or by making the excitation of the motor M dependent on the current or potential, or both, of the dynamo driven by the wind motor.
Patent GB-1267356-A (GB)
Title: Improvements in or relating to service monitoring of telephone switchboards
Inventor: DEBORDE HARRY MAYNARD
IPC: H04M3/36
Filed: 1968-06-19
Abstract: 1,267,356. Automatic exchange systems. POST OFFICE. 19 June, 1969 [19 June, 1968], No. 29236/68. Heading H4K. A telephone switchboard service monitor comprises means to determine, display and: record the mean time to answer of a batch of calls and the number of calls within the batch that have been. waiting longer than a specified  period. The embodiment shown monitors calls on 24 incoming lines L1 to- L24. Each call causes a common line ST to be marked causing a wiper switch in the access circuit to step until a calling line is found. When this occurs, two relays (not shown) operate until the call is answered. Operation of these relays cause the sample counter 1 to step one count for each call, enables a first timer over a line 2 so that it is stepped by clock pulses while the call remains unanswered, and enables a delay analyser which includes a second timer which adds one to registers Reg 10, Reg 30 and Reg 50 for each call that exceeds 10, 30 and 50 seconds respectively. When the sample counter has counted a batch of ten calls, the contents of the first timer and the registers are fed out sequentially to a display and record unit such as a pen recorder under control of a sequence controller. The timers, registers and sequence controller detailed comprise multi-bank uniselectors and the counter comprises a ratchet relay arranged to close a contact at the count of ten. The first timer comprises the second uniselector of a pair connected in cascade such that the second uniselector steps once for each ten clock pulses and thus gives the average time of answer of the ten calls of a batch that are accumulated on it. Details of the control of the pen recorder using uniselector banks which select taps on potentiometers supplying current to the recorder are given.
Patent GB-953566-A (GB)
Title: Silica-alumina cracking catalysts
IPC: C10G11/04
Filed: 1961-08-14
Abstract: A process for making SiO2-Al2O3 cracking catalyst comprises providing an alkali metal silicate solution having a silica to alkali metal weight ratio of 3 : 1 to 3,4 : 1, contacting the solution with sulphuric acid in an amount sufficient to form a silica hydrogel, commingling with the resulting mass an aluminous slurry containing aluminium sulphate and unreacted aluminium hydroxide in which the mol ratio of SO4 to Al2O3 is less than 3 : 1 in an amount sufficient to provide up to 50% active alumina in the final catalyst, adding a basic precipitant to the slurry to complete precipitation of the alumina, and purifying and drying the resulting product.  The alkali metal silicate is preferably Na2SiO3.  The aluminous slurry may be formed by either reacting Al(OH)3 with less than the equivalent quantity of H2SO4 or adding Al(OH)3 to a N/1 Al2(SO4)3 solution.  In a modification, part of the aluminium hydroxide is added not with the aluminium sulphate but at some other stage in the process prior to drying. Comparative examples are given.  Specification 953,567 is referred to.
Patent GB-281248-A (GB)
Title: Improvements in or connected with the recording or reproducing of sound in talking cinematography
IPC: G11B7/00
Filed: 1927-11-03
Abstract: 281,248. De Forest Phonofilms, Ltd., (Assignees of Forest, L. de). Nov. 27, 1926, [Convention date]. Records, photographic; records, combined photograph and kinematograph; optical apparatus. - Relates to photo-electric recording of sound on a kinematographio film and reproduction therefrom, and particularly to systems of the kind described in Specification 274,118, involving the simultaneous production of two records of sound from the same source (such as an orchestral, on one film. According to the invention, the positive film, from which sound is reproduced, is a composite one, consisting of two attached films with the sound records thereon superposed. The component films are differently coloured; and light-filters are used in association with a duplex photo-electric reproducing apparatus, in order that the records may individually, but simultaneously, effect the operation of their own loud-speakers. In making the records, the sound is picked up by two microphones 11, 12, or groups thereof, spaced apart, the microphones being connected to amplifiers 7, 8, Fig. 1; these operate photographic recorders 5. 6, which are placed behind slits 2, 3 past which the film 4 moves, the slits being located as shown in Fig. 2, so that the two sound records are formed on opposite edges of the film. Alternatively, the sound records may be made at other places on the film than the marginal edges, or on separate films. The two records are printed on separate positives, in such a manner that when the positives are superimposed, one sound record lies directly over the other, with a vertical displacement corresponding to the vertical distance between the slits 2. 3 of the recording-apparatus. Before the two films are cemented together, they are dyed different colours, one being dyed blue, for example, and the other red. For reproducing the sound, apparatus such as is shown in Fig. 3 is used, comprising lamps 17, 18 arranged on one side of a film gate 21 having two slits 22, 23 past which the film moves, and photo-electric cells 26, 27 on the opposite side. The cells, whicli are connected to amplifiers 30, 31, operating loud-speakers 34, 35, are sensitive to different kinds of monochromatic light; the cell 26 is specially sensitive to red or infra-red rays, while the cell 27, of the potassium mirror type, is sensitive to light near the blue end of the spectrum. In order that each cell shall be influenced only by one of the two records, appropriate light filters 24, 25 are placed in front of the photoelectric cells; thus, in the case described, the filter 24 transmits red light only, and the filter 25 blue light. With this arrangement, each of the superposed sound records effects reproduction by its own loud-speaker. The horns are arranged with respect to the screen 38 in a manner corresponding to the location of the components of the original source of sound.
Patent GB-1085824-A (GB)
Title: Manufacture of organic isocyanates
Inventor: BIRCHER BRIAN JOHN
IPC: C07C263/10
Filed: 1965-07-12
Abstract: Isocyanates are made by phosgenating primary amines or their salts in presence of a tetra-N-substituted thiourea.
Patent GB-391484-A (GB)
Title: A new or improved machine for splitting sheet rubber
IPC: B29B17/02
Filed: 1931-10-26
Abstract: A lubricant for a rubber-cutting knife is made by treating tallow with 1 per cent caustic soda solution and \ba1/4\be per cent sulphuric acid solution, similarly treating a vegetable oil and beating together 15 per cent of each with 70 per cent of water.
Patent GB-391229-A (GB)
Title: Improvements in or relating to photographic printing apparatus
IPC: G01J1/42
Filed: 1931-10-27
Abstract: 391,229. Controlling apparatus by light. HILGER, Ltd., A. and SMITH, C. F., 24, Rochester Place, Camden Road, London. Oct. 27, 1931, No. 29726. [Class 40 (v).] Apparatus for the automatic control of exposure in photographic contact printing comprises a light-sensitive device so placed as to receive light transmitted through the printing medium, means for integrating the response of the light-sensitive device with respect to time- and means for cutting off the printing light when the integrated response reaches a predetermined value. In the form shown the apparatus comprises a condenser C, Fig. 1, connected in series with a photo-electric cell P and a variable resistance R to a source of potential. The grid of a thermionic valve V is connected to the junction of the cell and the condenser, the anode of the valve being in series with a relay R<1> which comprises contacts C<1>, C<2>, C<3>, the contacts C<1>, C<2> completing the circuit of the printing lamps L<1> and of a signal lamp L<2> and the contacts C<2>, C<3> completing the circuit of a lamp L<3> for masking or of a ballast resistance. A second relay R<2> controlling the lamps L<1>, L<2>, L<3> is also provided. Specifications 344,900, 344,907, and 349,983 are referred to.
Patent GB-1456996-A (GB)
Title: Signal processing apparatus
IPC: G11B20/06
Filed: 1973-10-23
Abstract: 1456996 Television MCA DISCO-VISION Inc 23 Oct 1973 [24 Oct 1972] 29732/76 Divided out of 1456995 Heading H4F The subject-matter of this Specification is substantially the same as that described in Specification 1,456,995, but the claims are concerned with a sampling and holding network arranged to sample continuously the output signal from a discriminator, the held signal being supplied as the output signal whenever the absence of a portion of the incoming modulated signal to the discriminator is detected. In addition to using this sampling and holding network after insertion of a generated half-cycle into the incoming modulated signal whenever the absence of a half cycle therein is detected (claimed in Specification 1,456,995), the present invention refers to using the sampling and holding network without first generating a replacement half cycle.
Patent GB-630537-A (GB)
Title: Improvements in or relating to laminated magnetic elements
IPC: H02K1/14
Filed: 1947-11-10
Abstract: 630,537. Dynamo-electric machines. RAWLINGS, G. W. Nov. 10, 1947, No. 29824. Convention date, Oct. 26, 1938. Addition to 504,800. [Class 35] A laminated imbricated core member as claimed in the parent Specification is modified in that the laminµ t, u, v, are of a mutually fitting stepped form.
Patent GB-687665-A (GB)
Title: Improvements relating to refuse collecting vehicles
IPC: B65F3/02
Filed: 1949-11-22
Abstract: 687,665. Vehicle fittings for loading. ALLUM, C. E. T., WILSON, C. T., PAGE, E. W., and WEBB, W. C. Jan. 4, 1951.. [Nov. 22, 1949] No. 29896/49. Classes 78 (iii) and 78 (iv). A pair of power operated lifting arms pivoted to a refuse collecting vehicle lift a container above a discharge opening in the roof of the vehicle and the hinged bottom of the container is then opened. The vehicle 12 has rearwardly extending arms 16 raised by rams 18. The arms are pivoted to the vehicle at 17 and the rams at 19. The vehicle has an opening 15 closed by a flap 42, 45 hinged at 43, 44. The arms 16 have a cross bar 21 having two brackets 22, 23, the bracket 22 being foldable onto the bracket 23. The bracket 22 has a corrugated metal surface and dependent fastenings for engaging hooks 32 on the container 25. The arms 16 are limited in their upward movement by a rod 60 slidable in a guide pivoted to an operating lever 57 secured to a reversing valve 56. The rod has a lug 63 which engages a lug 64 on the arms and operates the valve to stop operating the ram. The member 49 on the arm engages the flap to raise it and to invert the container over the opening for dust free delivery. The container 25 has lugs which are engaged by rollers 41 on the vehicle to release the latch 34 of the bottom 33<SP>1</SP>. On lowering the container horns 52 engage the bottom closure and a roller 50 guides until the latch is secured. To discharge the vehicle, a barrier 13 is raised. The barrier has arms 76 which have rollers 74 which can be extended into the path of the arms 16 by operating a handle 77. A cam 80 on the arms engages the rollers and lifts the barrier, initially an arm 65 secured to the barrier slides in a slot 66 and then acts as a pivot. Movement is limited by a lug 84 on a rod 8 1 which engages a cam on the arm 65. The rod is pivoted to the valve lever and moves it to neutral position. For this operation lugs 86 for the flap are pivoted inwards and the bracket 22 is folded onto the bracket 23. For hand loading a rear panel 51 hinged to the barrier 13 is removed and the step 26 of the bracket 22 brought to the required height for hand loading. The vehicle is provided with a movable floor.
Patent GB-621968-A (GB)
Title: Improvements in fountain pens
IPC: B43K5/18
Filed: 1946-10-07
Abstract: 621,968. Reservoir pens. AMERICAN LEAD PENCIL CO. Oct. 7, 1946, No. 29899. Convention date, Dec. 5, 1944. [Class 146(iii)] In a reservoir pen wherein the nib 10 and feed-bar 13 are enclosed in a hood 6 having an opening 9 ,through which the nib-tip projects, transverse capillary slots 18 are provided in the under part of the hood to trap and store surplus ink. The feed-bar which has the usual air and ink passage 17 on its upper surface, is cylindrical at its rear end to fit into a ferrule 12 and semicylindrical with a tapered extremity at its other end. The tapered part engages a similarly-shaped surface 19 on the hood to give a wedging action which causes the feed-bar and nib to be firmly gripped against the opposing surface of the hood. The sides of the feed-bar are spaced from the sides of the hood to allow surplus ink to enter the grooves 18. Air passes to the reservoir through a passage 21 in the hood, a chamber 22, a channel 23, a groove 24 in the hood above the nib, the breather hole 25 in the 'nib and the passage 17. If flooding occurs, ink fills the passages, 18 and no air can enter the reservoir until the surplus ink is used up. The transverse slots 18 may be intersected by a longitudinal slot which extends completely or partly to the bottom of the hood.
Patent GB-465119-A (GB)
Title: Improvements in the manufacture of coiled-coil filaments for incandescent electric lamps and the like
IPC: H01K3/02
Filed: 1935-10-30
Abstract: 465,119. Coiling helices. HYGRADE SYLVANIA CORPORATION. Oct. 30, 1935, No. 29984. Convention date, Nov. 8, 1934. [Class 83 (iv)] [Also in Group XI] Cores.-In the manufacture of coiled coil tungsten filaments of lamps, discharge tubes, &c., the filament wire 1 is helically wound on a mandrel 2 of refractory metal such as molybdenum having a lower setting temperature than. the filament and the mandrel 2 is then wound on a second mandrel 3 of non-refractory material such as steel as shown in the Figure. The assembly is then heated to a temperature, e.g. 1100‹ C. at which the mandrel 2 is set without setting the tungsten filament. The mandrel 3 is then removed and the coiled mandrel 2 and filament heated to a temperature, e.g. 1650‹ C. at which the filament is set. The mandrel 2 is removed by dissolving with a mixture of nitric and sulphuric acid.
Patent GB-1401078-A (GB)
Title: Method of reforming hydrocarbons
IPC: C10G11/02
Filed: 1972-06-27
Abstract: 1401078 Gas manufacture JAPAN GASOLINE CO Ltd 27 June 1972 [28 June 1971] 29984/72 Heading C5E A methane-containing gas is made by reforming hydrocarbons having an average of at least two C atoms per molecule wherein the hydrocarbons are divided into at least two functions having different mean molecular weights and are successively steam reformed under adiabate conditions using a Ni-containing catalyst, beginning with the function with the lowest mean M.W. and mixing the product of one reaction with the function having the next highest mean M.W. to provide the feed for the next reaction, the first reaction being at 350- 550‹ C. with 1À0-5À0 molar proportions of steam to C atom present, the second and subsequent reactions being at 300-550‹ C. with a lower steam/carbon atom ration than that used in the first reaction. The hydrocarbons are petroleum refinery gas, liquefied petroleum gas, heavy and light naphtha and kerosine. The fractions are obtained by distillation.
Patent GB-795526-A (GB)
Title: Flight control system
Inventor: JR HERBERT HARRIS
IPC: G05D1/10
Filed: 1954-10-18
Abstract: 795,526. Automatic steering control systems. SPERRY RAND CORPORATION. Oct. 18, 1954, No. 29993/54. Class 38 (4). In an automatic control system for a guided missile, the radio control is inoperative during the propulsion period when stabilization is effected gyroscopically. The missile vertical and horizontal control surfaces are positioned by electrical signals from a free gyroscope situated at the missile centre of gravity two accelerometers at the missile nodal point and two rate gyroscopes. The spin axis of the free gyroscope is aligned with the missile longitudinal axis at the instant of launching and subsequent deviations of the missile axis in yaw or pitch, from the reference axis, are detected by the gimbol system. The accelerometers determine accelerations normal to the missile longitudinal axis. Damping of body oscillations is effected by the rate gyroscopes. In one embodiment, Fig. 7, the yaw wings 95, are positioned by the hydraulic system 187, 189, 190 under the control of electric error signals from the directional reference gyroscope 110, accelerometer 100 and rate gyroscope 166. Similarly, the pitch wings 90, are controlled from the gyroscope 110, accelerometer 139 and the rate gyroscope 165. Damping of the rate gyroscopes is effected by the oil-filled dampers 170 and prior to launching the rotor 111 of 110 is locked with its spin axis aligned with the missile longitudinal axis by the caging device 114. In a second embodiment, Fig. 3, the accelerations perpendicular and parallel to the missile longitudinal axis are measured at the accelerometers 20 and 10 respectively and then applied to the inverse tangent computer 40. The output signal of the latter, which is proportional to the angle between the resultant acceleration and the missile axis, is added to the output of the directional reference gyroscope 50, and applied to the servomotor of the control surfaces 90.